Publish at November 01 2017 Updated April 28 2022
"The noise generated by the transportation industry is the main source of noise on the planet. And it's increasing year after year, simply because traffic is increasing," illustrates Alain Berry, professor of the new Canada Research Chair in Vibro-Acoustics Applied to the Transportation Sector.
The transportation industry is an important sector in Canada: aeronautics is the 3rd largest in the world, and the automotive industry is 8th. As certifications will be increasingly stringent for aviation companies, for example, concrete actions in research and development are welcome.
With the majority of noise sources coming from vibrating elements, this new research chair will have precisely the objectives related to this complex problem. Professor Berry and his team will focus on the identification, reduction and reproduction of acoustic radiation from vibrating objects.
But will reducing vibration automatically result in noise reduction? Not necessarily. In the transportation sector, we are dealing with complex systems. Objects are large, materials are increasingly complex, structures are lightened, and a wide range of acoustic frequencies is covered. "This is not good news for the acoustician, because it increases the probability of having a lot of noise...", continues the scientist. Nice challenges on the horizon!
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